User interface



FIG. 1 is a perspective view showing the new design thereof;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIGS. 1, 2 and 6 which define the bounds between claimed and unclaimed subject matter form no part of the claimed design. 

The ornamental design for a user interface, as shown and described. 